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GustoGustoSan Francisco, CA

Staff Software Engineer, Growth

Staff-level full-stack engineer building orchestration and signal-driven engagement systems for Gusto's Growth team. Owns multi-quarter projects across Ruby/Rails and React codebases, mentors engineers, and drives measurable customer impact.

197k – 247k
Hybrid8+ YOEFullstack Engineering

About the role

Responsibilities

  • Design, build, and test full-stack platform capabilities that power signal-driven workflows and customer engagement experiences across the funnel
  • Build systems that ingest, prioritize, and route product, marketing, and sales signals into actionable next-best steps for downstream teams and tools
  • Develop backend services and internal interfaces that support orchestration, decisioning, experimentation, and delivery across evolving engagement channels
  • Help scale one of the largest Ruby/Rails and Javascript/React applications in the world, with a strong focus on performance, maintainability, and reliability
  • Collaborate with Product Management, Data, Design, Platform Engineering, and go-to-market partners to understand pain points, prototype solutions, and launch iteratively
  • Mentor other engineers to help solve complex technical problems across distributed systems, product workflows, and platform architecture
  • Build products and platforms that internal teams love to use and that create measurable customer and business impact

Requirements

  • 8+ years of software development experience
  • Experience building scalable full-stack systems that solve meaningful customer or business problems
  • Experience owning multi-quarter projects that solve complex engineering problems and drive measurable impact at scale
  • Experience with large-scale refactors, performance and reliability issues, and a strong sense of ownership over all aspects of a product or platform area
  • Experience designing backend APIs, data flows, and event-driven services that integrate reliably with other systems
  • Strong product and platform instincts, with the ability to balance technical quality, speed, and long-term maintainability
  • Ability to mentor engineers and raise the quality bar across the team
  • Experience leveraging AI tools or systems to accelerate development, improve testing, and unlock new product capabilities
  • Curiosity and experimentation with emerging AI frameworks, and sound judgment about how to evaluate and scale AI use safely and effectively

Nice-to-Haves

  • Experience in, or interest working in, Ruby on Rails
  • Appreciation for a collaborative, test-driven environment
  • Ability to build well-structured, maintainable, well-documented code
  • Ability to effectively communicate across engineering teams and with business stakeholders

Compensation & Benefits

  • Cash compensation targeted at $163,000–$204,000 in Denver & most remote locations, and $197,000–$247,000 for San Francisco & New York
  • Stock equity is additional
  • All full-time employees receive competitive base pay, benefits, and equity (RSUs)

Skills

Ruby on RailsJavaScriptReactFull-Stack DevelopmentBackend ApisEvent-Driven ServicesDistributed SystemsPerformance OptimizationSystem DesignAI Tools
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